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Hydro Flask
21oz / 621ml Standard Mouth + Flex Straw Cap
€39.95
Hydro Flask extra cap FOR FREE
Hydro Flask water bottles come with cap as shown in the picture. Create your own water bottle with a different cap.
Hydro Flask Flex Boot with -15% discount
Protect and customize your favorite drinking bottle with a Bottle Boot.
Hydro Flask Cleaning accessories with -15% discount
Keep your water bottle clean with one of these accessories.
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In short

Keep life moving with the Hydro Flask 21oz bottle + Flex Straw Cap. It stashes easily into a small shoulder bag, your pack’s side pocket, or your car cup holder, and holds enough ice cold goodness to keep you going for hours without weighing you down. The is Straw Cap makes drinking easy and is 100% leakproof! 

In detail
  • Volume: 621 mL / 21 oz
  • Mouth Diameter: 48.5 mm / 1.91 in
  • Bottle Width: 73 mm / 2.87 in
  • Bottle Height: 240 mm / 9.4 in
  • Weight: 340 g / 11.9 oz
  • Versatile, middle-of-the-road size
  • TempShield™ insulation eliminates condensation and keeps beverages cold up to 24 hours and hot up to 12 hours
  • Durable 18/8 Pro-Grade Stainless Steel construction
  • BPA-Free and Phthalate-Free
  • Compatible with Standard Mouth Insulated Sport Cap
  • Leakproof


TempShield™
The unique double-wall vacuum insulation protects temperature for hours. Cold drinks stay icy cold and hot drinks stay piping hot so you can stay refreshed for any adventure.

Pro-Grade Stainless Steel
Made with 18/8 pro-grade stainless steel to ensure pure taste and no flavor transfer - and the durable construction stands up for whatever life brings.

Proprietary Powder Coat
The proprietary powder coat means an easy-grip, sweat-free, and extra-durable bottle that you can take anywhere.